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-rw-r--r--third_party/libwebrtc/api/frame_transformer_interface.h6
1 files changed, 1 insertions, 5 deletions
diff --git a/third_party/libwebrtc/api/frame_transformer_interface.h b/third_party/libwebrtc/api/frame_transformer_interface.h
index afa79b92ea..4869ad6909 100644
--- a/third_party/libwebrtc/api/frame_transformer_interface.h
+++ b/third_party/libwebrtc/api/frame_transformer_interface.h
@@ -74,11 +74,7 @@ class TransformableAudioFrameInterface : public TransformableFrameInterface {
virtual rtc::ArrayView<const uint32_t> GetContributingSources() const = 0;
- // TODO(crbug.com/1453226): Change this to pure virtual after it
- // is implemented everywhere.
- virtual const absl::optional<uint16_t> SequenceNumber() const {
- return absl::nullopt;
- }
+ virtual const absl::optional<uint16_t> SequenceNumber() const = 0;
virtual absl::optional<uint64_t> AbsoluteCaptureTimestamp() const = 0;